xfpd , alto777, And one more thing I would like to mention. For now I wanted to create an illusion of movement for the car, but for this I need something like a track on the top and bottom of the 32 x 8 matrix which always moves to the left - just like a road lit with lights from both sides. But in such a case it becomes too narrow for the player car, so I need to use the second 32 x 8 matrix which is possible with the library I use. So the game field becomes a 32 x 16 matrix, and I have more space for my future improvements. What do you think? Is that a good idea?